This video introduces Spec Kit, a GitHub tool designed to bring spec-driven development to AI-assisted coding. It addresses the limitations of 'vibe coding' with LLMs by providing a structured workflow for defining project constitutions, functional specifications, and technical plans. The demonstration shows how to initialize projects, use the `specify` CLI, clarify requirements with AI-generated questions, and generate detailed plans, data models, and research, all while leveraging Git for iterative development and managing multiple implementations.